Make it 100% for anyone who camps a room for more than a minute and 50% Whenever you hold a magnum.
That way when Doc joins the server I'll volunteer to be whitey and wait several rounds to lower his guard. After several rounds of objective based maps, I'll RTV and get us onto Red Queen. After letting the humans complete the first two objectives. Doc and some of the other humans will begin to camp with their magnums as is expected.
Then when he thinks I'm AFK I'll strike hitting all of them while they have a 150% Infection rate. This advanced infection will instantly make them all whiteys and we will remove the remaining humans.
Thus everything will go according to plan.
MUHAHAHAHAHAH